Could I just ask for some clarification, please?

I've never needed to place a cache in an area which already has a Major Land Owner Agreement already in place. If I wanted to put a cache on e.g. Gloucestershire County Council Land, would I just submit a cache report in the usual way to the Reviewers and simply state in the notes that I would like it placed "under the MLO agreement" or would I still be required to contact GCC myself first, to let them know exactly where I wanted to place the cache and so get their "OK, that'll be fine".